package com.godofgamblers.hotelmanagementsystem.handler;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradeCancelRequest;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.alipay.api.request.AlipayTradeRefundRequest;
import com.alipay.api.response.AlipayTradeCancelResponse;
import com.alipay.api.response.AlipayTradeRefundResponse;
import com.godofgamblers.hotelmanagementsystem.pojo.Pay_success;
import com.godofgamblers.hotelmanagementsystem.service.CartService;
import com.godofgamblers.hotelmanagementsystem.service.OrderService;
import com.godofgamblers.hotelmanagementsystem.service.Order_ItemService;
import com.godofgamblers.hotelmanagementsystem.util.AlipayConfig;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.*;


/**
 * 接入支付宝接口
 * @author wzx
 *
 */
@Controller
@RequestMapping("/pay")
public class PayHandler {
    @Resource
    private OrderService orderService;
    @Resource
    private Order_ItemService orderItemService;
    @Resource
    private CartService cartService;
    private String[] check_cart;
    @RequestMapping("/pay")
    public void pay(HttpServletRequest request, HttpServletResponse response,String total_amount,String out_trade_no,String[] check) throws Exception{
        System.out.println("执行支付");
        System.out.println(total_amount);
        System.out.println(out_trade_no);
        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig.return_url);
        alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

        //商户订单号，商户网站订单系统中唯一订单号，必填
		/*String out_trade_no = new String(request.getParameter("WIDout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
		//付款金额，必填
		String total_amount = new String(request.getParameter("WIDtotal_amount").getBytes("ISO-8859-1"),"UTF-8");
		//订单名称，必填
		String subject = new String(request.getParameter("WIDsubject").getBytes("ISO-8859-1"),"UTF-8");
		//商品描述，可空
		String body = new String(request.getParameter("WIDbody").getBytes("ISO-8859-1"),"UTF-8");*/
        //从session中取出订单号

        //订单号
        //cutDownOrder(out_trade_no);
        //付款金额

        //订单名称
        String subject = "仙人大酒店";
        if(check!=null){
            check_cart = check;
            for(String c:check_cart){
                System.out.println(c);
            }
        }
        alipayRequest.setBizContent("{\"out_trade_no\":\""+ out_trade_no +"\","
                + "\"total_amount\":\""+ total_amount +"\","
                + "\"subject\":\""+ subject +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        response.setContentType("text/html;charset=utf-8");
        //请求
        String result = alipayClient.pageExecute(alipayRequest).getBody();
        //输出
        response.getWriter().println(result);
    }

    @RequestMapping("/return_notify")
    public void return_notify( HttpServletRequest request,HttpServletResponse response) throws Exception{
        //异步通知
        System.out.println("执行异步通知");
        //获取支付宝POST过来反馈信息
        Map<String,String> params = new HashMap<String,String>();
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
            valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); //调用SDK验证签名

        //——请在这里编写您的程序（以下代码仅作参考）——

			/* 实际验证过程建议商户务必添加以下校验：
			1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
			2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
			3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
			4、验证app_id是否为该商户本身。
			*/
        signVerified = true;
        System.out.println(signVerified);
        if(signVerified) {//验证成功
            //商户订单号
            String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //支付宝交易号
            String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //交易状态
            String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"),"UTF-8");

            if(trade_status.equals("TRADE_FINISHED")){
                System.out.println("执行finished代码");
                //判断该笔订单是否在商户网站中已经做过处理
                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                //如果有做过处理，不执行商户的业务程序
                //注意：
                //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
            }else if (trade_status.equals("TRADE_SUCCESS")){
                System.out.println("执行success中代码");
               //支付成功，通过订单号码将对应的订单找到，传入支付号码和修改订单状态----1
                //然后根据订单号码 去订单项将对应所有的项目的状态改为未使用----1
                Integer order_id = orderService.findOrderByOrderNum(out_trade_no); //根据订单号码 查到order_id
                Pay_success paySuccess = new Pay_success();
                paySuccess.setOrder_id(order_id);
                paySuccess.setDeal_num(trade_no);
                orderService.insertDelNum(paySuccess);//将支付号码和修改订单状态插入到订单表中
                //将所有拥有order_id的订单项状态都从未支付改为未使用
                orderItemService.updateOrderItemState(order_id);
                //支付成功之后，将购物车中的物品删除
                if(check_cart!=null){
                    for(String c : check_cart){
                        Integer cart_id = Integer.parseInt(c);
                        //将对应的删除掉
                        cartService.deleteSomeCart(cart_id);
                    }
                }

                //判断该笔订单是否在商户网站中已经做过处理
                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                //如果有做过处理，不执行商户的业务程序
                //注意：
                //付款完成后，支付宝系统发送该交易状态通知
                //如果成功，将支付宝交易号和交易状态通过订单号码存在数据库表中去


            }
            response.getWriter().print("success");

        }else {//验证失败
            response.getWriter().print("fail");

            //调试用，写文本函数记录程序运行情况是否正常
            //String sWord = AlipaySignature.getSignCheckContentV1(params);
            //AlipayConfig.logResult(sWord);
        }

    }
    @RequestMapping("/return_url")
    public void return_url(HttpServletResponse response){
        System.out.println("执行同步通知");
        try {
            response.sendRedirect("/indexs");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    //15分钟后交易关闭
    public void cutDownOrder(String out_trade_no){
        System.out.println("进入定时器"+out_trade_no);
        //设定定时器
        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                System.out.println("执行定时器");
                AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipaydev.com/gateway.do",
                        AlipayConfig.app_id,
                        AlipayConfig.merchant_private_key,
                        "json",
                        "utf-8",
                        AlipayConfig.alipay_public_key,
                        "RSA2");
                AlipayTradeCancelRequest request = new AlipayTradeCancelRequest();
                request.setBizContent("{" +
                        "\"out_trade_no\":"+out_trade_no+"}");
                AlipayTradeCancelResponse response = null;
                try {
                    response = alipayClient.execute(request);
                } catch (AlipayApiException e) {
                    e.printStackTrace();
                }
                if(response.isSuccess()){
                    System.out.println("调用成功");
                } else {
                    System.out.println("调用失败");
                }
            }
        }, 10000);
    }
    @RequestMapping("/tuikuan")
    @ResponseBody
    //退款接口
    public String tuikuan(String out_trade_no,String trade_no) throws AlipayApiException {
        AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipaydev.com/gateway.do",
                AlipayConfig.app_id,
                AlipayConfig.merchant_private_key,
                "json",
                "utf-8",
                AlipayConfig.alipay_public_key,
                "RSA2");
        AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();
        request.setBizContent("{" +
                "\"out_trade_no\":"+out_trade_no+"," +
                "\"trade_no\":"+trade_no+"," +
                "\"refund_amount\":1062.48" + "}");
        AlipayTradeRefundResponse response = alipayClient.execute(request);
        if(response.isSuccess()){
            System.out.println("调用成功");
        } else {
            System.out.println("调用失败");
        }
        return "";
    }
}
